Stovepipe-ventilator.



No. 787,468. PATENTED APR. 18, 1905.

' J. E. & 0. e. NELSON.

STOVEPIPE VENTILATOR.

' APPLICATION FILED 0012a. 1904.

a 286 ejmsm w m Rttqmegs UNITED STATES Patented. April 18, 1905.

PATENT OFFICE.

JACK E. NELSON AND CHARLES Gr. NELSON, OF COLORADO CITY, COLORADO.

STOVEPIPE-VENTILATOR.

SPECIFICATION forming part of Letters Patent No. 787,463, dated April 18, 1905.

Application filed October 26, 1904. Serial No. 230,128.

To all whmn it may concern:

Be it known that we, JACK E. NELsoN and CHARLEs G. NELSON, citizens of the United States, residing at Colorado City,in the county of El Paso and State of Colorado, have invented anew and useful Stovepipe-Ventilator, of which the following is a specification.

This invention relates to stovepipe ventilation, and has for its object to increase the draft through a stovepipe-and to effect the ventilation of a room by conducting heatedand vitiated air into the stovepipe. In this connection it is designed to embody the invention in the nature of an attachment which is capable of being readily applied and removed without material alteration of the pipe beyond the formation of an opening for the reception of the ventilator. It is furthermore designed to support the ventilator upon the stovepipe in a simple and effective manner without employing any extraneous fastening means, thereby to facilitate the application and removal of the device. It is also proposed to provide for conveniently closing the opening for the reception of the ventilating device when the latter is removed.

A still further object of the invention is to equip the device with a hood capable of being conveniently and detachably connected to the stovepipe in such a manner as to embrace the inlet end of the ventilating device and direct the draft thereto.

\Vith these and other objects in view the present invention consists in the combination and arrangement of parts, as will be hereinafter more fully described, shown in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that changes in the shape, proportion, size, and minor details may be made within the scope of the claims without departing from the spirit or sacrificing any of the advantages of the invention.

In the accompanyingdrawings, Figure 1 is a perspective view of the ventilating means of the present invention. Fig. 2 is a longitudinal sectional view thereof. Fig. 3 is adetail perspective view of the ventilating-tube detached. Fig. 4 is a detail perspective View of the stopper for closing the opening in the elbow when the ventilating-tube is removed. Figs. 5 an 6 are detail fragmentary perspective views of means for connecting the elbow member of the present device with stovepipesections. Figs. 7 and 8 are detail perspective views illustrating the manner of connecting the ends of the hood. member to detachably embrace the elbow.

Like characters of reference designate corresponding parts in each and every figure of the drawings.

The device of the present invention includes an open-ended tube 1, which has its front end cut obliquely and provided with an external annular flange 2, there being a swinging closure 3 pivoted to the flange by means of a handle 4:, so that by manipulating the latter the open front end of the tube may be controlled. This tube is thrust into an opening 5, formed in an elbow 6, so as to extend into the substantially horizontal member of the elbow with the flange 2 lying against the exterior of the elbow. An arm 7 extends clownwardly and outwardly from the lower portion of the flange and terminates in a pair of spaced books 8, which are designed to embrace the adjacent external annular rib 9 of the elbow, there being a finger-piece 1O projected from between the hooks 8 to facilitate the engagement and disengagement of the latter with respect to the rib 9. These hooks have sufficient elasticity to snugly grip the rib and main tain the tube 1 in position and at the same time to permit convenient removal thereof whenever desired.

When the tube 1 is fitted in place and the closure 3 is moved to one side, a draft will be created through the tube into the elbow, thereby carryingofl' the heated and vitiated air from the room and producing an increased draft through the stovepipe. The draft of course can be controlled by means of the closure or damper 3 and may be entirely out off by closing the damper. When the tube 1 is in the elbow, it does not materially afl'ect the draft. Should it be desired to remove the tube, the opening 5 may be closed by means of a stopper-plate 12, having a rotatable handle 13, with its shank or stem 14 rotatably piercing the plate and carrying an elastic cross-bar 15, which is designed to be entered into the opening and turned across the same so as to clamp the stopper-plate over the opening 5 to prevent the escape of smoke and products of combustion at this point.

While the construction thus far described is effective for the purpose designed, it is proposed to increase the draft through the tube by means of a hood 16, formed of sheet metal to embrace the elbow above the tube 1 and having reduced end portions 17 and 18, capable of being lapped across the back of the elbow and provided, respectively, with a longitudinal slot 19 and a pivotal latch 20, capable of being passed through the slot 19 and turned transversely across the same to detachably connect the ends of the hood, and thereby snugly embrace the latter upon the elbow. This hood projects a suitable distance in front of the elbow and operates to collect currents of air and direct them to the tube 1, so as to increase the draft produced by the device.

For connecting one end of the elbow to a Stovepipe-section 21 the elbow is provided at diametrically opposite points with hookshaped spring-catches, one of which has been illustrated in Fig. 6 of the drawings and designated 22, one end of the catch being riveted to the elbow, as at 23, and its outer free end being bent into a hook 24 to engage a socket or depression 25, which may be conveniently produced in the Stovepipe-section. These hooks may be readily snapped into engagement with the stovepipe and operate to prevent accidental disconnection ofthe pipe and the elbow, while at the same time they may be readily detached to permit disconnection of the pipe and the elbow. The opposite end of the elbow is provided with an arcuate or inclined slot or notch 26, intersecting the lower edge of the elbow and designed to receive a projection 27 upon the adjacent stovepipe-section 28, thereby forming a bayonetslot connection between the pipe and the elbow.

Having fully described the invention, what is claimed is- 1. A Stovepipe-ventilator comprising an elbow, a draft-tube piercing the bend of the elbow and projected into one of the arms thereof, a damper for the outer end of the tube, and a hood carried by the elbow and embracing the outer end of the tube.

2. .A stovepipe-ventilator comprising an elbow, a ventilating-tube piercing the bend of the elbow, and a hood embracing the elbow above the front end of the tube.

3. A Stovepipe-ventilator comprising an elbow, a ventilating-tube piercing the elbow, a hood embracing the elbow above the tube with its opposite ends lying at the back of the elbow, and means to detachably connect the opposite ends of the hood to retain the latter upon the elbow.

4. A Stovepipe-ventilator comprising an elhow, a ventilating-tube piercing the elbow, a hood embracing the elbow above the tube with its opposite ends overlapped across the back of the elbow, one end of the hood being provided with a slot and the opposite end having a rotatable latch capable of being received within the slot and turned thereacross to detachably connect the hood with the elbow.

5. A Stovepipe-ventilator comprising an elbow having an external rib, and aventilatingtube piercing the pipe and provided with means to grip the rib and retain the tube in place.

6. A stovepipe-ventilator comprising an elbow having an external rib, and a ventilatingtube piercing the elbow and provided with an elastic hook to grip the rib and maintain the tube upon the elbow.

7. A SliOVGDlIJG-VGHlJllitliOI comprising an elbow having an external rib, a ventilating-tube piercing the elbow, a pair of spaced elastic hooks carried by the tube to detachably grip the rib, and a finger-piece projected from between the hooks.

8. A Stovepipe-ventilator comprising an open-ended ventilating-tube to pierce a stovepipe and provided with a damper at its forward end, and a hood to embrace the stovepipe with its opposite ends provided with means for detachable connection thereof.

9. As a new article of manufacture, astovepipe-ventilator consisting of an open-ended tube provided at its forward end with an external annular flange set obliquely upon the tube, an elastic hook projected from the flange,

and a damper for the flanged end of the tube.

In testimony that we claim the foregoing as our own we have hereto afiixed our signatures in the presence of two witnesses.

JACK E. NELSON. CHARLES (Jr. NELSON. WVitnesses:

JOHN TOMASZ uRvsKE, JAMES I. LAGEY. 

